tert.-butyl lithium; (4S)-2,2'-(1-Ethylpropylidene)bislt;4-(1-methylethyl)-4,5-dihydrooxazolegt; in diethyl ether; pentane
T=-110°C; Rearrangement; Wittig rearrangement; 2 h; Title compound not separated from byproducts;
1: With 2-hydroxy-1,3-isoindolinedione; 2,2'-azo-bisisobutyronitrile; oxygen in acetonitrile
T=75°C; P=760.051 Torr; 20 h;
2: With sulfuric acid in acetonitrile
T=75°C; 4 h; Further stages.;
参考文献
Fukuda, Osamu; Sakaguchi, Satoshi; Ishii, Yasutaka
Advanced Synthesis and Catalysis, 2001 , vol. 343, # 8 p. 809 - 813
